1. A. Wernich, Geographisch-medicinische Studien nach den Erlebnissen einer Reise um die Erde (Berlin, 1878), pp. 81 et seq.
2. Rudolf Virchow, “Die physischen Eigenschaften der Lappen” (Verhandlungen der Berliner Gesellschaft für Anthropologie, Ethnologie u. Urgeschichte, vol. vii [1875], pp. 34 et seq.; also vol. xxii [1890], p. 411).
Page [118].
1. W. H. R. Rivers, “Observations on the Senses of the Todas” (Journal of Psychology, vol. i [1905], pp. 322 et seq.).
2. The complete results of this study have not been published. The tests on hearing were published by Frank G. Bruner, The Hearing of Primitive Peoples (New York, Science Press, 1908).
Page [120].
Charles Darwin, Journal of Researches into the Natural History and Geology of the Countries visited during the Voyage of H. M. S. Beagle round the World (New York, 1895), pp. 228-229.
Page [121].
A brief résumé of Freud’s theory will be found in the American Journal of Psychology, vol. xxi (1910).
Page [126].